diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6a0b3e47..8246c2ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 * Support for `Accept`/`Content-type` headers and for the content-type aware combinators in *servant-0.3*
 * Export `toApplication` from `Servant.Server` (https://github.com/haskell-servant/servant-server/pull/29)
 * Support other Monads than just `EitherT (Int, String) IO` (https://github.com/haskell-servant/servant-server/pull/21)
+* Canonicalize API types before generating the handler typesy
 
 0.2.4
 -----